Long context

deepseek-v4-flash API pricing

DeepSeek's models — cost-efficient reasoning and coding.

Model IDdeepseek-v4-flash

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Call summary

Input

$0.80/ 1M tokens

Cache write $0.80

Output

$1.60/ 1M tokens

Cache read $0.08

Context Window

API Endpoints

Available Configurations

deepseek-v4-flash API endpoints

One API key — call this model through any of the endpoints below.

POST/v1/chat/completionsOpenAI-compatible · Works for every model

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More DeepSeek models on Router One

Same gateway, same API key. Each page lists that model's endpoints, posted price, and context window.

deepseek-v4-pro$1.315 in / $2.63 out per 1M1M context

Call deepseek-v4-flash from your code

The same API key works across every endpoint below.

Endpoint

/v1/chat/completions

Model ID

deepseek-v4-flash

Routing mode

chat_completions

Request example

bash

curl -X POST \
  https://api.router.one/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "deepseek-v4-flash",
    "messages": [
      {"role": "user", "content": "Hello!"}
    ]
  }'

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Start using deepseek-v4-flash

Create an API key and call deepseek-v4-flash on Router One — pay as you go, with per-request cost and latency visibility.

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